Since then, scientists and researchers have sought to understand the body's oxidation process and free radicals contribute in its acceleration. It seemed that these so-called free radicals are rogue oxygen molecules that are highly unstable and which have harmful effects to the body. There is growing evidence that the production of reactive oxygen species (ROS), including free radicals, is behind the aging process and initiation of age-related disease. However, raspberries, cranberries, blueberries, and blackberries are also good antioxidant foods that are rich in proanthocyanidins which help prevent cancer and heart disease. Broccoli Another excellent antioxidant foods are green leafy vegetables. Your mom always say, "Eat your broccoli." Believe me, your mom is not out to torture you by making you eat veggies you hate. These are substances that defend our body against the ravages brought on by free radicals. The first ever antioxidants to catch the attention of scientists and the vitamin supplement industry is beta-carotene or more commonly known as Vitamin A. Now, you can find antioxidant supplements in the form of Vitamin A capsules in almost any pharmacy or health food store. The data on antioxidant vitamins is incomplete for the most part but up to 30 percent of Americans are already taking some form of antioxidant vitamin supplement along with their diet. Due to the lack of sufficient data to support the success of antioxidant vitamins supplement against cardiovascular diseases and other such degenerative illnesses, the American Heart Association does not recommend using antioxidant vitamins supplements. The function of antioxidants is to destroy harmful free radicals, counteracting the damaging of tissues and in effect, treating aging or causing its retardation. Antioxidants are commonplace in nature. In fact, antioxidants are abundant in more common vitamins such as retinol or Vitamin A, ascorbic acid or Vitamin C, tocopherol or Vitamin E, and selenium. One of the studies shows that part of the dietary antioxidant qualities of honey has preservative properties that work on meat without compromising the taste. Based on a work done on human blood in the lab, a recently published study says that the dietary antioxidants present in honey slow the oxidation of low density lipoproteins (LDL).